Android Jelly Bean 4.2.2 with Sense 5.1 for HTC Butterfly has apparently leaked and the dump is available for download. So you can download it and install it on your device. The developers are working to port this build of Android 4.2.2 with Sense 5.1 to Droid DNA and HTC One smartphones. For now, HTC Butterfly users can install this on their phones. It appears to be a leaked version of Sense 5.1 with Android 4.2.2 OTA update.
The leak also hints at a possible official release of Sense 5.1 for Droid DNA, HTC One and HTC Butterfly phones. A video of this build is also available:
Download Leaked Android 4.2.2 OTA with Sense 5.1 for HTC Butterfly
You can download the dump (Sense_5_4.2.2_deodex.zip) from XDA thread and flash it to your HTC Butterfly smartphone.
Download from here: XDA Forum thread